CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities
Net loss	$ (4,096)	$ (3,763)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and amortization	83	88
Amortization of debt issuance costs and beneficial conversion feature	$ 426	182
Reduction in accounts payable and accrued liabilities from the expiration of statute of limitations		$ (216)
Warrants issued in lieu of cash paid for services	$ 80
Stock-based compensation	376	$ 425
Change in assets and liabilities
Accounts receivable	(47)	(98)
Inventory	443	(98)
Other assets	9	(64)
Accounts payable	(326)	106
Deferred revenue	(1,177)	(357)
Accrued expenses	83	78
Pension obligation	10	27
Total adjustments	(40)	73
Net cash used in operating activities	(4,136)	(3,690)
Cash flows from investing activities
Purchase of property and equipment	(43)	(70)
Net cash used in investing activities	(43)	(70)
Cash flows from financing activities
Proceeds from exercised stock options	33	$ 55
Proceeds from issuance of preferred stock, net of issuance costs	9,955
Proceeds from line of credit	750
Repayment of line of credit borrowings	$ (350)
Proceeds from exercised warrants to purchase stock		$ 2,798
Dividends paid	$ (25)	(25)
Net cash provided by financing activities	10,363	2,828
Effect of exchange rate changes on cash	46	(16)
Net increase (decrease) in cash and cash equivalents	6,230	(948)
Cash and cash equivalents at beginning of period	218	2,363
Cash and cash equivalents at end of period	6,448	1,415
Supplemental disclosure of cash flow information:
Cash paid for interest	$ 1	$ 2
Cash paid for income taxes
Summary of non-cash investing and financing activities:
Reclassification of warrants previously classified as derivative liabilities to additional paid-in capital		$ 57
Issuance of common stock warrants securing line of credit borrowing facility		127
Issuance of common stock pursuant to cashless warrant exercises		2
Issuance of common stock pursuant to conversion of Related-Party notes payable and accrued interest		$ 85
Beneficial conversion feature of convertible debt	$ 146
Conversion of related party notes into Series E Preferred	1,978
Stock dividend on Series E Preferred	$ 480